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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

is unreliable

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "is unreliable" is correct and usable in written English.
It can be used to describe something or someone that cannot be trusted or depended upon. Example: "The data from that source is unreliable, so we should verify it with additional research."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Even the unreliability is unreliable.

Power is unreliable.

News & Media

The Economist

The space is unreliable.

News & Media

The Guardian

The index is unreliable.

But this approach is unreliable.

News & Media

The Economist

Cellphone reception is unreliable.

Today's system is unreliable – or worse.

News & Media

The Guardian

And even that information is unreliable.

George is unreliable... untrustworthy... to coin a phrase, a dolt".

News & Media

The Guardian

Tanzi agreed with Hartung's assertion that animal testing is unreliable.

News & Media

The Guardian

"Some data has to be ignored because it is unreliable".

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

When using "is unreliable", provide context to explain why something lacks reliability. For example, specify the conditions, data, or sources that contribute to its unreliability.

Common error

Avoid using "is unreliable" without sufficient evidence or justification. Ensure your assessment is based on factual analysis and not personal bias.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "is unreliable" functions as a predicate adjective, modifying a subject to indicate a lack of dependability or trustworthiness. As stated by Ludwig AI, the phrase is correct and usable in written English. Examples from Ludwig showcase its use in various contexts, such as describing data, systems, or sources.

Expression frequency: Very common

Frequent in

News & Media

54%

Science

38%

Formal & Business

8%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "is unreliable" is a common and grammatically correct way to express that something lacks dependability or trustworthiness. Ludwig AI confirms its usability in written English. It appears frequently in news, media, and scientific contexts to warn against trusting certain information or systems without verification. While versatile, it's essential to provide context for why something is deemed unreliable and avoid overstating unreliability without sufficient evidence. Alternatives like "is not dependable", "is untrustworthy", and "cannot be trusted" offer similar meanings with subtle differences in emphasis.

FAQs

How can I use "is unreliable" in a sentence?

You can use "is unreliable" to describe something that cannot be trusted or depended upon. For example: "The data from that source "is unreliable", so we should verify it with additional research."

What can I say instead of "is unreliable"?

You can use alternatives like "is not dependable", "is untrustworthy", or "cannot be trusted" depending on the context.

Is it better to say "is unreliable" or "unreliable"?

Both "is unreliable" and "unreliable" are correct, but they function differently. "Is unreliable" is a predicate adjective phrase, while "unreliable" is simply an adjective. The choice depends on the sentence structure.

What's the difference between "is unreliable" and "is inaccurate"?

"Is unreliable" means something cannot be trusted or depended on, while "is inaccurate" means something contains errors or is not correct. While related, they emphasize different aspects of a deficiency.

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Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: